Date   
Re: Help needed. How to rebuild ball screw

Ferris Uy
 

I have rebuilt the ball screws before. After taking it apart, I removed the bearings (over a container to avoid losing any of them) and soaked them in WD40 for a few minutes. The bearings were then dried on a piece of tissue. I then proceeded to clean out the dried grease in the ball screw housing with a round brush dipped in WD40. After this, I wiped the screw threads dry.

In rebuilding the ball screw, I took some grease and wiped it on the threads within the ball screw housing. The tiny bearings will stick to the grease as you replace each one on the thread. (NOTE: There are 2 small pins that are embedded near both ends of the thread inside the ball screw housing. You will need to make sure the small bearings are installed between these 2 pins, or they will fall out). After all the bearings are installed on the thread, carefully screw on the leadscrew. It may take you a few tries to ensure that no bearings pop out of the stopper pins as you replace the leadscrew. But, with some patience you should be able to complete rebuilding the ball screw. Btw, with the bearings covered in new grease, they don't bounce off far from where you are working. Hope this helps.

Re: Selling 2 stepper motors, 1 spindle motor and compelte electronic with video out/rs232

eric warner
 

Daniel -
I might be interested in this.  I have two of the Compact 5 CNC lathes and they generally work very well, however every once in a while they have a hicup and I'm thinking that having a spare set of parts to repair/replace the electronics would be a good idea.  I didn't see an e-mail address to contact you off the list so I figured I would contact you here.

Thanks,
Eric

Re: Help needed. How to rebuild ball screw

sam
 

Thanks for the replies. will give it a try tomorrow.

Selling 2 stepper motors, 1 spindle motor and compelte electronic with video out/rs232

mydani
 

Hi,

selling in germany, complete electronic incl. housing (complete black box), spindle motor, 2 stepper motors.
If interested, let me know via email.

Regards,
Daniel

Re: Help needed. How to rebuild ball screw

Richard <2rn@...>
 

Peter,

I have opened and reassembled‎ my X and Y axis exactly that way as Peter described it. After that my machine has been running perfectly.

Be a little patient whole reassembling, you should be fine!

Best‎ regards, 
Richard

Verzonden vanaf mijn BlackBerry 10-smartphone.
Van: Peter Keizer
Verzonden: donderdag 20 februari 2014 19:54
Aan: Emco_cnc_users@...
Beantwoorden: Emco_cnc_users@...
Onderwerp: Re: [Emco_cnc_users] Help needed. How to rebuild ball screw

 

Hi Sam,

place the nut on the end of the screw, and screw it on there untill theres just about one pitch open.

Then use a small stick (drill, screwdriver, etc etc) and get a tip of grease on it.
Then you can pick up a ball on that stick. The grease will function like glue. Now push all the balls in the nut, screw the nut on further a bit and back. You'll be able to fill it like that.


Goodluck, and be patient!

Peter.


2014-02-20 14:01 GMT+01:00 sam <westmount_sam@...>:

 

I recently got a compact 5 cnc that I am trying to rebuild. The X axis ball screw was completely frozen and even after many treatments with light oil and wd40, it was still very rough. I opened it up and and was full of junk and small balls of course. I did not lose any, but how to get them in. Any one done this before. Thanks



Re: Help needed. How to rebuild ball screw

Peter Keizer <keizer.peter@...>
 

Hi Sam,

place the nut on the end of the screw, and screw it on there untill theres just about one pitch open.

Then use a small stick (drill, screwdriver, etc etc) and get a tip of grease on it.
Then you can pick up a ball on that stick. The grease will function like glue. Now push all the balls in the nut, screw the nut on further a bit and back. You'll be able to fill it like that.


Goodluck, and be patient!

Peter.


2014-02-20 14:01 GMT+01:00 sam <westmount_sam@...>:

 

I recently got a compact 5 cnc that I am trying to rebuild. The X axis ball screw was completely frozen and even after many treatments with light oil and wd40, it was still very rough. I opened it up and and was full of junk and small balls of course. I did not lose any, but how to get them in. Any one done this before. Thanks


Re: Wanted MK4 CPU board A6C114004

bluecoast1
 

I live in Canada. I tried to send you a personal email... I would love the a6c114004 board. The broken button is no problem. How much would you like for it?

Help needed. How to rebuild ball screw

sam
 

I recently got a compact 5 cnc that I am trying to rebuild. The X axis ball screw was completely frozen and even after many treatments with light oil and wd40, it was still very rough. I opened it up and and was full of junk and small balls of course. I did not lose any, but how to get them in. Any one done this before. Thanks

Re: Wanted MK4 CPU board A6C114004

Croonen
 

hello I have a A6C114004 board but there is one button brokken on the bleu whit the sinus symbol

the other board I have a A6C114003 but there are the button compleet from.

where do you live?

greetings Benny


2014-02-19 14:34 GMT+01:00 <bluecoast@...>:

 

Thank you very much... let me know.




Re: Wanted MK4 CPU board A6C114004

bluecoast1
 

Thank you very much... let me know.


Re: Wanted MK4 CPU board A6C114004

Croonen
 

I sure have sure 1 board A6c114004 maybe 2 I have to look but I build the machine to Mach 3 I have done 2 milling F1 and 3 turning machines compact5 and on the 4 I am busy at the moment.
greetings Benny


2014-02-19 5:05 GMT+01:00 <bluecoast@...>:

 

Does anyone have a CPU board from a mk4, part number A6C114004 they'd want to part with?


I'm hoping someone who did a Mach or LinuxCNC conversion will have a spare they'd part with. 

Thanks.


Wanted MK4 CPU board A6C114004

bluecoast1
 

Does anyone have a CPU board from a mk4, part number A6C114004 they'd want to part with?

I'm hoping someone who did a Mach or LinuxCNC conversion will have a spare they'd part with. 

Thanks.

Emco Compact 5 CNC CAD model?

mydani
 

Hi guys,

do  you know whether there's a CAD model of the Emco Compact 5 CNC available for download somewhere?

Regards,
Daniel

Re: Help with code for compact 5 cnc

m.wg@...
 

Hi Mark


Just uploaded an MFI program to the Files section called Cylinder turn thread, ran OK on my machine but enter your tool offsets and number of tool jumps for the change.

Like you I had Alarm 02 with the X 1625 entered, just changed to 1624 throughout program and all was OK.

Max speed I found for the thread is about 480rpm.

Not sure what depth you need for the 24TPI thread but adjust as required.

If you go more than .030" you need to adjust the chamfer cut depth.


Working in mm units gives you better resolution and greater accuracy on size, MFI will convert program from inch to metric, or back if you want.

Hope this helps, Rgds, Marcus

Re: Help with code for compact 5 cnc

mastuart1@...
 

I forgot to add my machine has the turret tool changer

 

Mark



---In Emco_cnc_users@..., <mastuart1@...> wrote:

Hi I have been trying to use MFI to get the program for some parts that I what to make for a model engine I want to build.   The parts I want to make are the cylinders.  I have 24 blanks roughed out.  They are 1.625 dia x 2.156 long.   I have them faced on both ends and are the right length and they are bored.  I did this on a manual lathe. 

 

I now want to use my Emco compact 5 Mk4  to do more work on them.  I have been getting frustrated trying to punch in my program on the machine.  No matter what I do I keep getting alarm 02 when I type in my x number.  

 

It would be real helpful if someone  could write the code that I need .  I could then punch it into my machine and see if it works .  I could also put it into MFI  and see how it compares to what I have done.   This would be a big help to me understanding what I am doing.

 

 

I have  the machine set on inch mode.    I would like to use feed per rev for feed . I would also like to do this in absolute mode. I would like to use g84 to turn the 1.375 dia and the 1.250 dia.   After the turning cycle was done use g78 for the threading cycle.     Almost forgot the material is 12 L14  steel . It is leaded steel and cut like butter.   So use whatever feeds and speeds are appropriate.

   I will try to attach  a crude drawing .     Thanks for your help              

 Mark

 

 

Help with code for compact 5 cnc

mastuart1@...
 

Hi I have been trying to use MFI to get the program for some parts that I what to make for a model engine I want to build.   The parts I want to make are the cylinders.  I have 24 blanks roughed out.  They are 1.625 dia x 2.156 long.   I have them faced on both ends and are the right length and they are bored.  I did this on a manual lathe. 

 

I now want to use my Emco compact 5 Mk4  to do more work on them.  I have been getting frustrated trying to punch in my program on the machine.  No matter what I do I keep getting alarm 02 when I type in my x number.  

 

It would be real helpful if someone  could write the code that I need .  I could then punch it into my machine and see if it works .  I could also put it into MFI  and see how it compares to what I have done.   This would be a big help to me understanding what I am doing.

 

 

I have  the machine set on inch mode.    I would like to use feed per rev for feed . I would also like to do this in absolute mode. I would like to use g84 to turn the 1.375 dia and the 1.250 dia.   After the turning cycle was done use g78 for the threading cycle.     Almost forgot the material is 12 L14  steel . It is leaded steel and cut like butter.   So use whatever feeds and speeds are appropriate.

   I will try to attach  a crude drawing .     Thanks for your help              

 Mark

 

 

Re: EMCO F3-CNC

f1pmiller
 

Hi Uros,  I have an F1P with the M1 control and a VMC100 with the TM02 , if you sell off any of the parts you don't use let me know .Is your control not working? ,Kev

Re: EMCO F3-CNC

alpinasjofallet
 

I have not seen any info on the F3-CNC, but the Emcotronic control system is also used on several other system, for example, the Emco F1P (not regular F1), VMC100, and the compact 6 and EmcoTurn 120 lathe.


Look at the document section here as well as in the "emco_turn_120" and "emcof1mill" groups and you will find lots of schematics and information on the Emcotronic control system.


If you look at this, it will be fairly straightforward to understand how the F3 works.


Regards


/B

Re: G84 cycle on mark3 Emco

m.wg@...
 

Hi Daniel


You have identified the difference in your question. When G84 is used on later Mk's of machine there is an additional column, this is marked H and as you say provides multiple passes to the cycle. The depth of cut required is entered into the H column and the control panel computes the final cut if the total depth of cut in X is not exactly divisable by the dimension in H.

If entered in MFI you will see in the Comments column the number of passes per cycle.

On the Mk2 machine G84 is 1 longitudal cycle so the dimension in the X column is the depth of cut for the cycle. This does save entering 3 additional lines of code to achieve the same movement of the tool.

On both machines after using G84 the tool finishes at the start of cycle position.

Rgds, Marcus

G84 cycle on mark3 Emco

mydani
 

Hi guys,

does anyone have the G-Code description for the mark 3? Only find the mark 4 ones - in them, the G84 cycle is described as a longitudinal cycle which cuts several times and uses more parameters.
If I switch in MFI editor to Mark 2 and use G84, it's only X, Z and F. So I wonder what this cycle does.

Regards,
Daniel